68020732 has 12 divisors (see below), whose sum is σ = 128193016. Its totient is φ = 31394160.

The previous prime is 68020717. The next prime is 68020739. The reversal of 68020732 is 23702086.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68020732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68020739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653994 + ... + 654097.

Almost surely, 2^68020732 is an apocalyptic number.

It is an amenable number.

68020732 is a deficient number, since it is larger than the sum of its proper divisors (60172284).

68020732 is a wasteful number, since it uses less digits than its factorization.

68020732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308108 (or 1308106 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 68020732 is about 8247.4682175805. The cubic root of 68020732 is about 408.2069867972.

It can be divided in two parts, 680 and 20732, that added together give a palindrome (21412).

The spelling of 68020732 in words is "sixty-eight million, twenty thousand, seven hundred thirty-two".